[Review and Publish] Test Day/Week Annoucements

@bcotton Hey!

We have exactly 3 announcements for Test Days
IoT : https://communityblog.fedoraproject.org/wp-admin/post.php?post=9676&action=edit

Kernel 5.11 : https://communityblog.fedoraproject.org/wp-admin/post.php?post=9678&action=edit

i18n https://communityblog.fedoraproject.org/wp-admin/post.php?post=9679&action=edit

For posterity: sumantro self-published on Sunday.